HT67F488 datasheet(60/171 Pages) HOLTEK

60 / 171 page

Rev. 1.60

�ove��e� �� 016

HT67F488/HT67F489

TinyPowerTM A/D Flash MCU with LCD & EEPROM

I/O Pin Structures

TheaccompanyingdiagramsillustratetheinternalstructuresofsomegenericI/Opintypes.As

theexactlogicalconstructionoftheI/Opinwilldifferfromthesedrawings,theyaresuppliedasa

guideonlytoassistwiththefunctionalunderstandingoftheI/Opins.Thewiderangeofpin-shared

structuresdoesnotpermitalltypestobeshown.

V DD

Wa ke - up Op ti on

S yst em W ak e- up

R ead Da ta R egi st er

Co nt ro l Bi t

Da ta B us

Wr it e C ont ro l Re gi st er

Ch ip R es et

Re ad C on tr ol R eg is te r

Wr it e Da ta R egi st er

Da ta B it

I/O o r Pi n- sh ar ed p in

We ak

Pu ll- up

Pu ll- Hi gh

Op ti on

PA on ly

I npu t S i gnal f or P in -s har ed Fu nc ti on

Ou tp u t O pt io n

Generic Input/Output Structure

V DD

Re ad D at a R egi st er

Co nt ro l Bi t

Da ta B us

Wr it e C ont ro l R egi st er

Ch ip R es et

Re ad C on tr ol R egi st er

Wr it e Da ta R eg is te r

Da ta B it

A/ D I npu t Po rt

AC S4 ~A CS 0

To A /D C onv er te r

We ak

Pu ll -u p

An al og

In put

Se le ct or

Pu ll- Hi gh

Re gi st er

Se le ct

A/D Input/Output Structure

HT67F488 데이터시트(PDF) 60 Page - Holtek Semiconductor Inc

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